Kumari, A and Yadav , S K and Pakade, Yogesh B and Kumar, Vineet and Singh , Bikram and Chaudhary, A and Yadav, S C (2011) Nanoencapsulation and characterization of Albizia chinensis isolated antioxidant quercitrin on PLA nanoparticles. Colloids and Surfaces B: Biointerfaces , 82. pp. 224-232.

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Abstract

The plant isolated antioxidant quercitrin has been encapsulated on poly-d,l-lactide (PLA) nanoparticles by solvent evaporation method to improve the solubility, permeability and stability of this molecule. The size of quercitrin-PLA nanoparticles is 250±68nm whereas that PLA nanoparticles is 195±55 nm. The encapsulation efficiency of nanoencapsulated quercitrin evaluated by HPLC and antioxidant assay is 40%. The in vitro release kinetics of quercitrin under physiological condition reveals initial burst release followed by sustained release. Less fluorescence quenching is observed with equimolar concentration of PLA encapsulated quercitrin than free quercitrin. The presence of quercitrin specific peaks on FTIR of five times washed quercitrin loaded PLA nanoparticles provides an extra evidence for the encapsulation of quercitrin into PLA nanoparticles. These properties of quercitrin nanomedicine provide a new potential for the use of such less useful highly active antioxidant molecule towards the development of better therapeutic for intestinal anti-inflammatory effect and nutraceutical compounds.

Item Type:	Article
Uncontrolled Keywords:	Keywords: Quercitrin PLA In vitro release Antioxidant DPPH Quenching
Subjects:	Plant sciences
Divisions:	UNSPECIFIED
Depositing User:	Dr. Aparna Maitra Pati
Date Deposited:	13 Jan 2012 06:35
Last Modified:	14 Mar 2013 08:02
URI:	http://ihbt.csircentral.net/id/eprint/920

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